Vise.



E. A. SCHADE.

vl'sE. APPLICATION FILED NOV-5| 1914- COLUMBIA PLANOGRAPH CO WASHINGTON, D. C.

Patented Aug. 17, 1915.

UMTFD @TATEEE PATENT @FFTQE.

EDMUND A. SCHABE, 0F NliV-J' BRITAIN, CONNECTICUT, ASSIGNOR TO THE STANLEY RULE & Lnvnr. coiaranv, CONNECTICUT.

VISE.

Specification of Letters Patent.

Patented Aug. 1?, 1915.

Application filed November 5, 1914. Serial No. 870,326.

To all whom it may concern:

Be it known that I, EDMUND A. Sermon, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Vises, of which the following is a full, clear, and exact description.

My invention relates to improvements in Vises.

The object of the present invention is to provide in a device of well-known type a new feature of construction which adds sub stantially to the durability of the device as a whole.

In the drawings, Figure l is a perspective view of-that particular part of a vise to which my improved device is applied. Fig. 1 is an end elevation of a portion of the part shown in Fig. 1. Fig. 2 is a front elevation of the stationary jaw element. Fig. 3 is a section of certain parts, certain features thereof being shown in elevation. Fig. 4 is a perspective view of a detail. Fig. 5 is a view of a modification of the detail shown in Fig. at. Fig. 6 is a view similar to Fig. 3, showing the position of the modified detail of Fig. 5 therein.

1 represents the main frame of the vise, which carries the stationary aw. 2.

3 is the movable jaw which is mounted upon the slide-bar 4, which is arranged to reciprocate in the passage 5 in the main frame 1.

6 is a screw which is mounted to rotate in the movable jaw element and which makes a threaded engagement with an internally threaded piece or standard 7, carried by the frame 1 in the opening 5. The bar 4: is hollow and the screw 6 standstherein. The screw 6 is provided with an internal abutment shoulder 8 and an external abutment shoulder 9, which parts are preferably integral with the screw, and which abutments are spaced apart appropriately and engage against internal and external supporting walls in the outer end of the part at, as best seen in Fig. 3.

10 is a handle, of any suitable design, by which the screw 6 may be rotated.

Obviously, when the parts are assembled with the bar 4 located in the passage 5 and the screw 6 in threaded engagement with the piece 7 the rotation of the screw 6 in a clockwise direction will move the jaw 3 toward the jaw 2. The rotation of the screw 6 in a counterclockwise direction will move the jaw 3 away from the jaw The main pieces of the vise,that is to say the stationary part and the slidable jaw part,

longing the effective life of the device. It is clear that the greatest strain will occur at the inner side of the abutment 9 where it engages against the end of the movable jaw element and against which it is pressed very tightly through the action of the screw 6. To guard against wear at this point I provide a steel washer, which is preferably made of two separable companion parts 11, 12. The central portion of these parts when the same are placed together, form, in effect, a washer, as shown in Fig. 1, which washer lies between the abutment 9 and the outer end of the movable jaw-piece, as shown in Fig. 3. Hence the strain of the abutment 4 is taken directly by this wear-resisting piece. The part 11 is provided with a central semicircular portion, from one end of which. projects the upward extension 11, and from the opposite end of which projects the depending and rearwardly hooked extension 11". The part 12 is correspondingly formed, but the semicircular portion is reversely arranged so that when said two parts are placed together they will form, in effect, a continuous washer, as shown in Fig. 1. As best seen in Fig. 1 the end of the movable jaw element'is provided with a recess 14, adapted to receive the two upper ends of the parts 11 and 12, while the depending rearwardly hooked parts 11 project into the space between the two side walls of the slidable jaw member. Thus these parts 11 and 12 are held against rotation.

15 is a pin which may be passed between the two side walls across the space, just below the stem of the screw 6 and between the abutments 8 and 9, the function being to prevent the screw from dropping out of place should the stationary and movable parts of the vise be separated. This pin has nothing to do with the function of my new feature of improvement.

Operation: With the parts thus far described assembled, as shown in Figs. 1 and 3, it will be observed that when the screw 6 is turned in a direction to clamp against anything placed between them the strain and friction of the screw will be taken by the wear-resisting element, instead of against the cast metal of the movable jaw element which is not well adapted to withstand friction and wear, and consequently the life of the vise will be very much prolonged.

I have shown in Fig. 5 a modification in which the wear-resisting pieces are provided with supplemental. wear-resisting pieces arranged, when assembled, to form a washer justoutside of the abutment 8 and between it and the inner abutment shoulder of the movable jaw element against which the part 8 bears. In this modification the outer wear-resisting element is constructed as previously described, but the lower depending and rearwardly hooked part 11 is provided at its rear end with an upwardly extending semi-circular part 16, which constitutes half of the interior washer. The companion piece to that shown in Fig. 5 would be correspondingly formed, the half washer portions being reversed, so that when the two parts are placed together they will pro vide an external wear-piece to take the thrust of the abutment 9,when the jaws are being moved together, and an internal wearpiece to take the thrust of the abutment 8 when the jaws are being separated.

That I claim is,-

1. In a vise, a main frame having a sta tionary jaw and a guide passage for a moving jaw, a movable jaw member slidably mounted in said guide passage, said jaw member having spaced apart side portions, a screw mounted for rotation in the slidable. jaw member, an internally threaded piece, carried by the stationary jaw member or main frame arranged to receive the screw, an abutment on the screw arranged to press toward the movable jaw member, and a wear-resisting washer disposed between said abutment and said movable jaw member provided with rearwardly hooked parts engaged between the spaced apart side portionsto thereby hold said washer against rotation.

2. In a vise, a main frame having a stationary jaw and a guide passage for a moving jaw, a movable jaw member slidably mounted in said guide passage, said jaw member being hollow, a screw mounted for rotation only in the slidable jaw member, an internally threaded piece carried by the stationary jaw member or main frame arranged to receive the screw, an abutment on the screw arranged to press toward the movable jaw member, a non-rotatable wearresisting washer arranged between said abutment and said movable jaw member to receive the thrust of said abutment, said washer comprising two separable semi-circular parts provided with extensions, and shoulders on the movable jaw member en gaged by said extensions to prevent separation of said parts when in operative position and to prevent the rotation of said parts with said screw.

3. In a vise, a main frame constituting a stationary jaw member andhaving a guide passage therein, a movable jaw element mounted to be reciprocated in said guide passage, 1 a screw carried by said movable jaw element and making a threaded engagement with part ofsaid stationary jaw member, two annular spaced abutments fixedly mounted on said screw element, said mov able jaw member having a partstan dingb tween said abutments, and a separate wearpiece surrounding the screw between said abutments and having a portion disposed between the outer abutment and the outer face of said jaw part and another portion disposed between theinner abutment and the inner face ofsaid jaw part, whereby the thrust of said abutments against said jaw member willbe received directly by said wear-resisting element in both directions of movement ofthe jaw. i

EDMUND A, SCI-IADE. Witnesses:

A. L.- WIABD,

J. WQRAM.

Copies of] this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. r 

